<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图 -->
        <el-card class="box-card">
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodList">
                        <el-button slot="append" icon="el-icon-search" @click="getGoodList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddpage">添加商品</el-button>
                </el-col>
            </el-row>
            <!-- table 表格区域 -->
            <el-table :data="goodsList" border stripe class="table">
                <el-table-column type="index"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格（元）" prop="goods_price" width="150px"></el-table-column>
                <el-table-column label="商品重量" prop="goods_weight" width="150px"></el-table-column>
                <el-table-column label="商品创建时间" prop="add_time" width="170px">
                    <template slot-scope="scope">
                        {{scope.row.add_time | dateFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="200px">
                    <template slot-scope="scope">
                        <el-button type="primary" size="mini" icon="el-icon-edit">编辑</el-button>
                        <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeById(scope.row.goods_id)">删除</el-button>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[5, 10, 15, 20]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total" background>
            </el-pagination>
        </el-card>
    </div>
</template>

<script>
export default {
  created () {
    this.getGoodList()
  },
  data () {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodsList: [],
      // 总数据
      total: 0
    }
  },
  methods: {
    // 根据分页获取商品列表数据
    async getGoodList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('商品列表获取失败')
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    // 监听每页条数pagesize改变
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodList()
    },
    // 监听当前页pagenum的改变
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodList()
    },
    // 删除商品
    removeById (id) {
      this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async () => {
        const { data: res } = await this.$http.delete(`goods/${id}`)
        if (res.meta.status !== 200) {
          this.$message.error('删除失败')
        } else {
          this.$message({
            type: 'success',
            message: '删除成功!'
          })
          this.getGoodList()
        }
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    },
    // 添加商品跳转
    goAddpage () {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style scoped>
.box-card,.table{
    margin: 15px 0;
}
</style>
